diff --git a/src/main/java/supercritical/api/nuclear/fission/FissionReactor.java b/src/main/java/supercritical/api/nuclear/fission/FissionReactor.java
index b49679c..8ed7486 100644
--- a/src/main/java/supercritical/api/nuclear/fission/FissionReactor.java
+++ b/src/main/java/supercritical/api/nuclear/fission/FissionReactor.java
@@ -435,7 +435,7 @@ public void computeGeometry() {
 
         for (int iIdx = 0; iIdx < fuelRods.size(); iIdx++) {
             FuelRod i = fuelRods.get(iIdx);
-            neutronToPowerConversion += i.getFuel().getReleasedHeatEnergy() / i.getFuel().getReleasedNeutrons();
+            neutronToPowerConversion += i.getFuel().getReleasedHeatEnergy() / i.getFuel().getRequiredNeutrons();
             decayNeutrons += i.getFuel().getDecayRate();
         }
         computeCoolantWeights();
diff --git a/src/main/java/supercritical/common/materials/SecondDegreeMaterials.java b/src/main/java/supercritical/common/materials/SecondDegreeMaterials.java
index 1372939..eaf8957 100644
--- a/src/main/java/supercritical/common/materials/SecondDegreeMaterials.java
+++ b/src/main/java/supercritical/common/materials/SecondDegreeMaterials.java
@@ -31,7 +31,7 @@ public static void register() {
                         .slowNeutronFissionCrossSection(1.8)
                         .requiredNeutrons(1)
                         .releasedNeutrons(2.5)
-                        .releasedHeatEnergy(0.01)
+                        .releasedHeatEnergy(0.025)
                         .decayRate(0.025)
                         .build());
 
@@ -50,7 +50,7 @@ public static void register() {
                         .slowNeutronFissionCrossSection(2)
                         .requiredNeutrons(1)
                         .releasedNeutrons(2.5)
-                        .releasedHeatEnergy(0.01)
+                        .releasedHeatEnergy(0.025)
                         .decayRate(0.05)
                         .build());
 
@@ -69,7 +69,7 @@ public static void register() {
                         .slowNeutronFissionCrossSection(2.2)
                         .requiredNeutrons(1)
                         .releasedNeutrons(2.60)
-                        .releasedHeatEnergy(0.02)
+                        .releasedHeatEnergy(0.052)
                         .decayRate(0.1)
                         .build());
 
@@ -88,7 +88,7 @@ public static void register() {
                         .slowNeutronFissionCrossSection(2.4)
                         .requiredNeutrons(1)
                         .releasedNeutrons(2.80)
-                        .releasedHeatEnergy(0.02)
+                        .releasedHeatEnergy(0.056)
                         .decayRate(0.2)
                         .build());
     }